Base | Representation |
---|---|
bin | 1101001001000110101011… |
… | …10101011010011011100110 |
3 | 10210022211021120120111100122 |
4 | 12210203111311122123212 |
5 | 12241444430121011030 |
6 | 141244311342441542 |
7 | 6041652046466444 |
oct | 644432565323346 |
9 | 123284246514318 |
10 | 28900127516390 |
11 | 9232525616009 |
12 | 32a90562932b2 |
13 | 1318368bc0180 |
14 | 71cab8bd7b94 |
15 | 351b5a6158e5 |
hex | 1a48d5d5a6e6 |
28900127516390 has 64 divisors (see below), whose sum is σ = 57542248120896. Its totient is φ = 10381268178432.
The previous prime is 28900127516321. The next prime is 28900127516437. The reversal of 28900127516390 is 9361572100982.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43794629 + ... + 44449631.
It is an arithmetic number, because the mean of its divisors is an integer number (899097626889).
Almost surely, 228900127516390 is an apocalyptic number.
28900127516390 is a deficient number, since it is larger than the sum of its proper divisors (28642120604506).
28900127516390 is a wasteful number, since it uses less digits than its factorization.
28900127516390 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 664233.
The product of its (nonzero) digits is 1632960, while the sum is 53.
The spelling of 28900127516390 in words is "twenty-eight trillion, nine hundred billion, one hundred twenty-seven million, five hundred sixteen thousand, three hundred ninety".
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